Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quem é o jogador de rb da equipe de Oakland?
 ###Tabelas: CREATE TABLE first_round (first_round_id AUTO_INCREMENT PRIMARY KEY, Pick INT, Team VARCHAR, Player VARCHAR, Position VARCHAR, College VARCHAR) CREATE TABLE breakdown_by_nationality (breakdown_by_nationality_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, 2012 INT, 2011 INT, 2010 INT, 2009 INT, 2008 INT, 2007 INT, 2006 INT, 2005 INT, 2004 INT, 2003 INT, 2002 INT, 2001 INT, 2000 INT, 1999 INT, 1998 INT, 1997 INT, 1996 INT, 1995 INT, 1994 INT, 1993 INT, 1992 INT, 1991 INT, 1990 INT, 1989 INT, 1988 INT) CREATE TABLE qualifying_games (qualifying_games_id AUTO_INCREMENT PRIMARY KEY, Game INT, Date VARCHAR, Batting 1st VARCHAR, Batting 2nd VARCHAR, Result VARCHAR) CREATE TABLE the_reform_of_the_national_water_and_sewerage_corporation (the_reform_of_the_national_water_and_sewerage_corporation_id AUTO_INCREMENT PRIMARY KEY, 1998 VARCHAR, 2000 VARCHAR, 2004 VARCHAR, 2007 VARCHAR, 2011 VARCHAR) CREATE TABLE public_universities (public_universities_id AUTO_INCREMENT PRIMARY KEY, University VARCHAR, Nick VARCHAR, University status INT, Founded INT, Location VARCHAR, Division VARCHAR, Specialization VARCHAR, Website VARCHAR)  
SELECT Player FROM first_round WHERE Position = rb AND Team = oakland